Lower Colorado River Operations Schedule
Releases from Davis and Parker dams will vary from about 4,400 cubic feet per second
(cfs) to 24,000 cfs during a 24-hour period. River levels will vary during the 24-hour
periods with the higher levels coinciding with periods of peak hydroelectric power
generation. Levels below the dams are usually highest during the afternoon and early
evening. Average daily releases may vary in response to changing conditions.
Average daily releases and midnight lake elevations for the week, as well as
anticipated averages for the following 2 weeks, are scheduled as follows:
Parker Davis Hoover
Dam Lake Dam Lake Dam Lake
Average Havasu Average Mohave Average Mead
Release Elev. Release Elev. Release Elev.
Date (cfs) (ft) (cfs) (ft) (cfs) (ft)
---- ----- ---- ----- ---- ----- ----
Apr 6 14500 447.3 19000 641.0 21700 1106.4
Apr 7 14000 447.3 18800 641.2 21700 1106.2
Apr 8 13500 447.4 18800 641.4 21700 1106.1
Apr 9 12000 447.6 18800 641.5 21700 1105.9
Apr 10 14000 447.6 18800 641.7 21700 1105.7
Apr 11 13500 447.6 18800 641.4 15200 1105.6
Apr 12 13000 447.7 18800 641.2 16400 1105.6
Average 13500 18800 20000
Apr 13 to
Apr 19 14200 447.7 18800 641.6 20000 1104.5
Apr 20 to
Apr 26 13700 448.1 18800 641.9 20000 1103.5
Current Lake Powell storage is 12,766 thousand acre-feet (KAF) (52 percent of
capacity). Lake Mead storage is 12,131 KAF (47 percent of capacity). Total
system storage is 32,156 KAF (54 percent of capacity). Lake Powell elevation
is 3,610.35 feet.
The projected April-July forecast for the Colorado River is 7.2 million acre-
feet or 91 percent of average.
Yesterday, the average Colorado River flows were 810 cfs near the Yuma Fourth
Avenue Bridge and 3,429 cfs at the Northerly International Boundary. The
average release from Painted Rock Dam was 0 cfs and Alamo Dam was 40 cfs. The
Morelos Dam diversions for the week of 06-Apr-2009 are expected to be 3,607 cfs.
ALL RIVER USERS should remember that fluctuating river flows may conceal or
create natural hazards such as moving sandbars, gravel bars, unstable
riverbanks, floating or submerged debris, or other unfamiliar obstacles.
Caution should be exercised while using the river between Davis Dam and the
Mexican Border at San Luis, Arizona.
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